The data describes the leading banks in the U.S. in 2015, ranked by tier 1 capital. Industrial and Commercial Bank of China (ICBC) led the ranking in that year, with tier 1 capital amounting to approx. 281.26 billion USD.
Tier 1 capital is composed of shareholder equity and retained earnings. The tier 1 capital ratio is calculated by dividing the tier 1 capital (core equity) by the total risk-weighted assets of the bank. In the Bank of America, for example, tier 1 capital amounted to 190.32 billion USD in 2016, while the tier 1 capital ratio was equal to 12.
